Distributor mounting



1,631,185 B. H. ANIBAL DISTRIBUTOR MOUNTING Filed Aug. 1926 June 7, 1927.

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Patented June 7, 1927.

UNITED STATES PATET OFFICE.

BENJAMIN H. ANIBAL, F PONTIAC, MICHIGAN, ASSIGNOR TO GENERAL MOTORS COR- PORATION, OF DETROIT, MICHIGAN, A CORPORATION OF DELAWARE.

DISTRIBUTOR MOUNTING.

Application filed August 30, 1926. Serial Ito. 132,520.

This invention relates to a new and improved form of mounting the distributor and oil um of an internal combustion engine.

T 1e object of the invention is to rovide a simple form of mounting which wi 1 be economical in manufacture, of increased efliciency, easy to assemble and unlikely to get out of repair.

A further object of the invention is to prom vide a construction wherein the operating means is completely enclosed within the engine, protecting the parts from injury, and the distributor terminals are located at a more convenient oint and in close proximity to the spark p ugs, presenting a compact engine assembly.

A further object is to provide a device which may be quickly and easily remo ed for replacement or repair, without necessity 0 for disassembling the entire engine.

lVith the above primary and other incidental objects in view as will appear, the invention consists of the features of constructions, parts, arrangements and location there- 25 of, and the mode of assembly as hereinafter described.

The drawing forming a part hereof, is a transverse sectional view of a multiple cylinder engine taken on a central line or between two adjoining middle cylinders illus trating the application of the present 1nvention.

Referring to the drawing the customary internal combustion engine cylinder block 1, has the cylinders located in the upper portion anda crankcase below and driven off the crank shaft thru gears, a chain or the like, is the cam shaft 3 which controls the engine valves in the usual manner. The engine cylinder block is provided with a central vertical bore, thru which extends at right angles to and in close relation with the cam shaft 3, a sectional shaft 4-56, driven by the cam shafgthru suitable driving members, as for instance, a worm 7 carried on the cam shaft 3, meshing with a worm wheel 8, se-' cured to the shaft section 4 by the pin 9. An integral downwardly projecting sleeve 10 of the worm wheel 8, may be provided to detarhably enga e and drive the shaft section 5, by means 0 a pin and slot connection as shown. The lower end of the shaft section 5 is keyed with the shaft section t, which thus operates a gear pump 11 bolted at 12' to the bottomot the motor block wall 13. The

pump 11 has an inlet neck extending into the bottom of the oil pan 14, thru which'is drawn the lubricating oil, to be forced under pressure thru the conduit 15 into a number of branch conduits leading to the several bearings.

The head 16 of the engine is securely bolt ed to the cylinder block by means of the customary head pins 17. Firmly held beneath the head of one of such pins, is a flattened portion of the clamp collar 18, which surrounds a dependent neck or sleeve 19, integrally connected to and forming a part of the housing for the ignition distributor unit. The neck 19 extends into the central bore and the annular raised portions 20 abut the sides of the bore to accuratel locate the distributor. The upper end 0 the shaft section 4 extends into the, neck 19 to operate the distributor in the usual way.

A mounting for the sectional shaft is provided closely adjacent the driving connection with the cam shaft, and consists of a bearing bushing 21 surrounding the shaft and fit ting in a spacer sleeve 22 within the central bore. The spacer sleeve has at its end an annular flange, resting on the shoulder 23, and

the thrust collar 24 carried by the shaft section 4, bears upon the upper end'of the spacer sleeve 22, and properly maintains the spacer and bushing in their desired relation upon the shaft. To insure thorough lubrication, a helical oil groove 25 in the shaft is shown at the bearing portion. Screw threaded into the side of the motor block is a set screw 26, bearing against the side of the sf pacer sleeve, with the locking nut 27 there- Thus it will be seen that the entire driving parts are enclosed within the engine, obviating the danger of accidental injury and breakage, as well as affording a more con1 pact and unitary motor, of improved appearance and operation. However, in case it becomes necessary to replace worn parts or make repairs, the device may be easily and quickly disassembled, without affecting any other part of the motor. The set screw 26 is adjusted from the exterior of the motor, the driven worm wheel 8 is of smaller diameter thanthe bore, in the cylinder block and since the lower shaft 5 has the pin and slot drive connection, the entire ripper portion may be separated from the lower portion and lifted thru the central tore. In the same manner,

in case it is desired to remove the oil pump,

grime, and its terminals are close to the spark plug terminals and a material saving is effected with the use of short lengths of electric current conducting wire.

While the invention has been described more or less specifically, it is obvious that till various modifications may be made, as come within the 'scope of the appended claims.

Having described my invention I claim:

1. An internal combustion engine, includ-' ing in combination a cylinder block having a vertical bore intermediate the margins of the block, a drive shaft extending thru the bore, and an accessory device located above the to of the cylinder block and operated by sai shaft. I

2. An internal combustion engine, including in combination a cylinder block having a central vertical opening, an accessory device positioned over said opening at the top of the cylinder block, a drive shaft for the accessory device extending thru the o ening, and a detachable mounting for said 5 aft.

3. An internal combustion engine, includ ing in combination a cylinder block having a central bore, a bearing sleeve positioned in the bore, a shaft having a drivin connection with the cam shaft, revolving in said hearing sleeve, and a distributor on top of the engine havin r a dependent portion extending into the fibre thru which the shaft projects to operate the distributor.

4. An internal combustion engine including in combination, a cylinder b ock having a central bore, a distributor located above the top of the engine and having dependent portion extending in said bore, a drive shaft for the distributor extending into said dependent portion, a driven element fastened to the end'of said shaft capable of being passed thru said bore upon assembly or disassembly anda bearing for the shaft detachably secured in said bore.

5. An internal combustion engine includ ing in combination, a cam shaft, a worm on the cam shaft, a shaft located in a central vertical bore in the engine, and having a worm wheel meshing with the cam shaft worm, but of smaller diameter than the vertical bore, amount-ing for the shaft consisting of a spacer sleeve detachably secured in the bore, a bearing bushin in said sleeve, and a thrust collar carried by the shaft and bearing upon the top of the sleeve, means d tachably lock the mountingin place, and

ing of a bearing an accessory device carried upon the to of the engine actuated by said shaft, the ad ustment of the locking means permitting removal of the shaft, mounting, and worm wheel from the bore.

6. An internal combustion engine including in combination, a cylinder block having a central vertical bore, a sectional shaft extending thru the bore, a distributor at the.

upper end of the shaft above the top of the cylinder block, an oil pump at the lower end of the shaft, a driven element carried b one of the shaft sections and having detac able engagement with another section to positively operate both the distributor and Oll pum and a bearing member for the shaft detach ably secured in the bore to permit removal of the shaft sections without disassembly of the engine.

7. An internal combustion engine including in combination, a horizontal cam shaft, a vertical sectional shaft extending thru a central opening in the engine, a driving ear -on the cam shaft, a driven gear fastene on the lower end of the upper shaft section, a distributor on the top of the engine actuated by said upper shaft section, a mounting for the said upper shaft section detachably retaining the gears in mesh, the said bore bein sufficiently large to permit the pamage o the driven gear u on detachment, and an oil pump in the cran case actuated by the lower section of the shaft, such lower section having detachable engagement with the driven gear, whereby the removal of the several parts, may be effected without disassembly of the en ine.

8. An internal combustion engine includin in combination, an ignition distributor driven from the cam' shaft a dependent sleeve projectin from said distributor into a central vertica bore in the engine cylinder block to position said distributor, a shaft extending into said sleeve to actuate the distributor, a mounting for the shaft consistbushing surroundin the shaft, a spacer s eve carrying the bus ing, a set screw mounted in the side of the engine cylinder block to detachably' maintain the spacer within the bore and a thrust collar carried by the shaft and bearing'upon the top surface of the spacer sleeve, a driving element carried by the cam shaft and a driven element carried by the distributor shaft actuated by said driving element, said driven element being of smaller diameter than the vertical bore to permit ready removal thereof from the bore upon the adjustment of said set screw. 7 v

in testimony whereof ll afix my signature.

BENJAMIN H. ANIBAL, 

